blob: 6067fa65afff79a4970fe2614c87ad46d58ebbe8 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
|
/*
* Copyright 2011 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "GrShaderCaps.h"
#include "SkString.h"
#include "../private/GrGLSL.h"
bool GrGLSLSupportsNamedFragmentShaderOutputs(GrGLSLGeneration gen) {
switch (gen) {
case k110_GrGLSLGeneration:
return false;
case k130_GrGLSLGeneration:
case k140_GrGLSLGeneration:
case k150_GrGLSLGeneration:
case k330_GrGLSLGeneration:
case k400_GrGLSLGeneration:
case k420_GrGLSLGeneration:
case k310es_GrGLSLGeneration:
case k320es_GrGLSLGeneration:
return true;
}
return false;
}
const char* GrGLSLTypeString(const GrShaderCaps* shaderCaps, GrSLType t) {
switch (t) {
case kVoid_GrSLType:
return "void";
case kHalf_GrSLType:
return "half";
case kHalf2_GrSLType:
return "half2";
case kHalf3_GrSLType:
return "half3";
case kHalf4_GrSLType:
return "half4";
case kFloat_GrSLType:
return "float";
case kFloat2_GrSLType:
return "float2";
case kFloat3_GrSLType:
return "float3";
case kFloat4_GrSLType:
return "float4";
case kUint2_GrSLType:
if (shaderCaps->integerSupport()) {
return "uint2";
} else {
// uint2 (aka uvec2) isn't supported in GLSL ES 1.00/GLSL 1.20
return "float2";
}
case kInt2_GrSLType:
return "int2";
case kInt3_GrSLType:
return "int3";
case kInt4_GrSLType:
return "int4";
case kFloat2x2_GrSLType:
return "float2x2";
case kFloat3x3_GrSLType:
return "float3x3";
case kFloat4x4_GrSLType:
return "float4x4";
case kHalf2x2_GrSLType:
return "half2x2";
case kHalf3x3_GrSLType:
return "half3x3";
case kHalf4x4_GrSLType:
return "half4x4";
case kTexture2DSampler_GrSLType:
return "sampler2D";
case kITexture2DSampler_GrSLType:
return "isampler2D";
case kTextureExternalSampler_GrSLType:
return "samplerExternalOES";
case kTexture2DRectSampler_GrSLType:
return "sampler2DRect";
case kBufferSampler_GrSLType:
return "samplerBuffer";
case kBool_GrSLType:
return "bool";
case kInt_GrSLType:
return "int";
case kUint_GrSLType:
return "uint";
case kShort_GrSLType:
return "short";
case kUShort_GrSLType:
return "ushort";
case kTexture2D_GrSLType:
return "texture2D";
case kSampler_GrSLType:
return "sampler";
case kImageStorage2D_GrSLType:
return "image2D";
case kIImageStorage2D_GrSLType:
return "iimage2D";
}
SK_ABORT("Unknown shader var type.");
return ""; // suppress warning
}
void GrGLSLAppendDefaultFloatPrecisionDeclaration(GrSLPrecision p,
const GrShaderCaps& shaderCaps,
SkString* out) {
if (shaderCaps.usesPrecisionModifiers()) {
switch (p) {
case kHigh_GrSLPrecision:
out->append("precision highp float;\n");
break;
case kMedium_GrSLPrecision:
out->append("precision mediump float;\n");
break;
case kLow_GrSLPrecision:
out->append("precision lowp float;\n");
break;
default:
SK_ABORT("Unknown precision value.");
}
}
}
|
